<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>博客列表</title>
    <link rel="stylesheet" href="css/list.css">
    <link rel="stylesheet" href="css/blog_list.css">
    <style>
        
        .nav{
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 50px;
        }
        .container{
            padding-top: 80px;
            height: auto;
        }
        .container-right{
            width: auto;
        }
        .blog-pagnation-wrapper{
            height: 40px;
            margin: 16px 0;
            text-align: center;
        }
        .blog-pagnation-item{
            display: inline-block;
            padding: 8px;
            border: 1px solid #d0d0d5;
            color: #333;
        }
        .blog-pagnation-item:hover{
            background: #4e4eeb;
            color: #fff;
        }
        .blog-pagnation-item.actvie{
            background: #4e4eeb;
            color: #fff;
        }

    </style>
    <script src="js/jquery.min.js"></script>
    <script src="js/urltools.js"></script>
    <script src="js/logout.js"></script>
</head>

<body>
    <!-- 导航栏 -->
    <div class="nav">
        <img src="img/logo2.jpg" alt="">
        <span class="title">我的博客系统</span>
        <!-- 用来占据中间位置 -->
        <span class="spacer"></span>
        <!-- <a href="blog_list.html">主页</a>
        <a href="blog_add.html">写博客</a> -->
        <a href="login.html">登陆</a>
        <!-- <a href="#">注销</a> -->
    </div>
    <!-- 版心 -->
    <div class="container">
        <!-- 右侧内容详情 -->
        <div class="container-right" style="width: 100%;">
            <!-- 每一篇博客包含标题, 摘要, 时间 -->
           <div id = "artlist">
           </div>
            <hr>
            <div id="pageDiv" class="blog-pagnation-wrapper">
                <button class="blog-pagnation-item" onclick="doFirst()">首页</button> 
                <button class="blog-pagnation-item" onclick="doPre()">上一页</button>  
                <button class="blog-pagnation-item" onclick="doNext()">下一页</button>
                <button class="blog-pagnation-item" onclick="doLast()">末页</button>
            </div>
        </div>
    </div>
    <script>
        var pageIndex = 1;//当前页码
        var pageSize = 2;//每页显示最大条数
        var pageCount = 1;//总页数
        function paramInit(){
            var paramPageIndex = getParamByKey("pageIndex");
            var parampageSize = getParamByKey("pageSize");
            if(paramPageIndex != null){
                pageIndex = paramPageIndex;
            }
            if(parampageSize != null){
                pageSize = parampageSize;
            }
            doAjax();
        }
        paramInit();
        //点击首页
        function doFirst(){
            if(pageIndex <= 1){
                alert("当前已经在首页");
                return false;
            }
            pageIndex=1;
            location.href="blog_list.html?pageIndex="+pageIndex+"&pageSize"+pageSize;
        }
        //点击"上一页"
        function doPre(){
            if(pageIndex <= 1){
                alert("抱歉:不能跳转,当前已经在首页!");
                return false;
            }
            --pageIndex;
            location.href= "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
        }
        //点击"下一页"
        function doNext(){
            if(pageIndex >= pageCount){
                alert("抱歉:您已经在末页了,无需跳转!");
                return false;
            }
            ++pageIndex;
            location.href="blog_list?pageIndex="+pageIndex+"&pageSize"+pageSize;
        }
        //点击"末页"
        function doLast(){
            if(pageIndex >= pageCount){
                alert("抱歉:您已经在末页了,无需跳转!");
                return false;
            }
            location.href = "blog_list.html?pageIndex="+pageCount+"&pageSize="+pageSize;
        }
        //请求后端,得到数据并展示列表
        function doAjax(){
            //1.得到当前页面的文章列表数据
            jQuery.ajax({
                url:"/art/getlistbypage",
                type:"POST",
                data:{
                    "pageIndex":pageIndex,
                    "pageSize":pageSize
                },
                success:function(res){
                    if(res.code == 200 && res.data.length > 0){
                        var artListHtml = "";
                        for(var i = 0;i < res.data.length;i++){
                            var item = res.data[i];
                            artListHtml += '<div class="blog">';
                            artListHtml +='<div class="title">'+item.title+'</div>';
                            artListHtml +='<div class="date">'+item.createtime+'</div>';
                            artListHtml +='<div class="desc">'+item.content+'</div>';
                            artListHtml +='<a href="blog_content.html?id='+item.id +'" class="detail">查看全文 &gt;&gt;</a>'
                            artListHtml += '</div>';
                        }
                        jQuery("#artlist").html(artListHtml);
                        jQuery("#pageDiv").show();
                    }else{
                        jQuery("#pageDiv").hide();
                        jQuery("#artlist").html("<h2 style='margin-left:20px;margin-top:10px;'>暂无文章！</h2>");
                    }
                }
            });
            //2.查询文章的总条数 ->得出当前总页数
            jQuery.ajax({
                url:"/art/getcount",
                type:"POST",
                data:{},
                success:function(res){
                    if(res.code == 200 && res.data > 0){
                        //计算总页数
                        pageCount = Math.ceil(res.data/pageSize);
                    }
                }
            });
        }
    </script>
</body>
</html>